Mounting nut for AX-12A


I would like to use thin M2 hex nuts to fasten some AX-12A servos to my robotics project. The hardware schematic is helpful, but it does not give the dimensions of the “pockets” of the side holes along the servo. This means that I would need to wait until the servos arrive so that I can actually try fitting hex nuts into these pockets before ordering in bulk, which wastes time in terms of logistics.

Would anybody happen to have the dimensions for these pockets, or know of the exact hex nut which fits? We are talking on the scale of single millimeters, so high precision is desirable.

Thank you!

ROBOTIS actually does sell these nuts in bulk, so you can just pick up a pack of them and know that they’ll fit.